document.write( "Question 34710: The question goes like this....\r
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document.write( "Write an exponential function that includes the given points (1,5);(2,7)
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Algebra.Com's Answer #20962 by stanbon(75887) ![]() You can put this solution on YOUR website! y=ab^x is the form of an exponential function. \n" ); document.write( "You have two points with values of x and y. \n" ); document.write( "You need to find a and b. \n" ); document.write( "Substiute as follows: \n" ); document.write( "5=ab^1 \n" ); document.write( "7=ab^2 \n" ); document.write( "Divide the 1st into the 2nd to get: \n" ); document.write( "7/5 = b \n" ); document.write( "Substitue that into the 1st to get: \n" ); document.write( "5=a(7/5) \n" ); document.write( "a=25/7 \n" ); document.write( "EQUATION: y= (25/7)(7/5)^x \n" ); document.write( "Cheers \n" ); document.write( "Stan H.) \n" ); document.write( " \n" ); document.write( " |